Razor-stropper



s. DYKTOR.

RAZOR STROPPER.

APPLICATION FILED JUNE 28, 1919.

1 334,234. Patented Mar. 16, 1920.

ATTORNEYS STANISLAS DYKTOR, OF NEW YORK N. Y.

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Application filed June 28, 1919.

To all whom it may concern:

Be it known that I, .STANISLAS Drn'ron, a citizen of Russia, anda resident of the city of New York borough of Manhattan, county of: New York, and State of New York, have invented a new and Improved Razor-Strepper, of Which the following is a full, clear, and exact description.

This invention relates to stropping niachines do]: razors, and more especially to a small inoased stropping mechanism for safety razor blades.

An objeetof the invention is to provide a simple, compact and effective CEOI'IH of safety razor blade stropper confined in a cylindrioalcasing.of small size in order 'that the stropper may fit in a travelers toilet set.

A purpose is to provide a stropping machine provided with stropping or friction. rollers engageable with the razor blade edges and operated by a small crank. A further purpose is to provide a stropping mecha nism contained within a case which is slidable in and out of said case in order to perfect quick changes ofblades.

Finally, it is an object to design a strepping machine consisting of few parts, coinparatively inexpensive to build, and one which is "unlikely' to get out of working order.

lVith the above-principal objects, and others, in view, the invention relates to the stropping machine forsafety razorblades as depicted. in the appended claims, and as dcscribed in the following specification, and an example of which is illustrated in the accompanying drawings, wherein:

Figure 1 shows a perspective View of the stroppiiig machine.

Fig. shows a longitudinal section of the stropping machine as developed on the line 2-2 of Fig. 3; and Fig. 3 shows a sectional view taken upon the line 3--3 of Fig. 2.

Fig. at shows a longitudinal 'viewas taken upon the line 4- l of Fig. 2,a11d Fig. 5 shows a transverse View taken on the line of Fig. 9..

Fig. 6 shows an end section developed 011 the line 6-4) of Fig. 2, and Fig. 7 shows a fragmentary detail of a c 'ank and drive ele in cut employed.

In constructing a razor stropping machine according to the plans of this invention, I employ a cylindrical casing in Which is slidably contained the stropping mecha- Specification of Letterslatent.

Patented Mar. 16, 1920.

Serial No. 307,423.

nisin. Thestropping mechanism consistsof a razor blade holder frame swingable about the liPtl1]1.; LXlS to change the setting of the blade during sharpening of the alternate edges. A pair of friction or sharpening rollers are employed for engaging the razor blade edges to sharpen said edges, and the rollers are driyen'by a crank.

Referring now more in particular .to the drawings, .the numeral 8 designates a cyli ndrical casing closed at one end as shown at 9. The casing has cut therein slots 10 ex tending parallel With the axis of the casing. One end or the front end, of the case is made open in order ;to receive a removable closure head.

flanged disk 11 is slidably mounted in the case. The disk is formed with a flange 10 formed on the periphery thereof, and through the flange is passed a retaining pin 12. The ends of the retaining pin are slidahly mounted in thcslots 10 and heads are formed on the end of the pin. In this man nor the disk 11 is slidable back and forth in the case but limited in movement therein by the length of the slots 10. A closure head 14 is unade with a push-fit adapted to remain in position in. theend of the case through frictional engagement therewith. A supporting disk 15 is provided and has a push fit with the cylindrical case 8.. The sup orting disk isspaced from. the closure head in order to admit drive members to be mounted therebetween as later seen. Both the disk members 14: and 1.5 are rovided with a slot 1.6 out in the periphery thereof andextending partly therearound. At each end of the slot there is formed a notch 17. said notch being somewhat deeper than the slot.

A blade retaining frame is swingably mounted between the disks 11 and 15. The disks 11 and 15 act to support the blade frame and other parts. The blade frame consists of pintlcs 1S firmly anchored to a plate 19 by brazing, welding or other appropriate means. The plate 19 will preferably be somewhat narrower than the Width of the blades to be sharpened, and may be slightly longer so as to adequately support and back up the blade. The plate is fitted with. dowel pins 20 spaced apart a distance about equal to the spaced holesusually found in safety *azor blades of one or more .atypes.

A retaining plate 21 lS]]]0lU1il i i ed on the frame plate 19 and holes in the plate 21 register with the dowel pins 20. A hole is formed centrally through both plates 19 and 21 and screws 22 passed the'rethrough to secure the frame plates together. A razor blade 23 to be sharpened is interposed between the two frame plates by the dowel pins and the screws or bolts 22. The pintles 18 are journaled in the two disks 11 and 15. The forward pintle is provided with a collar 24, and an adjustment crank 25 fixed to the collar 24:. The adjustment crank registers with the slots 16 formed in the support disk and closure head 14. The adjustment crank is fitted with a small knob or handle piece so that it may be moved in the slot relatively with the closure head. The adjustment crank will preferably be made of spring steel material so the outer end will flex or spring into each notch 17 at the'end of its travel in the slot 16. This arrangement will cause the blade frame and razor blade to maintain its fixed position when the adjustment crank is in locked pos'ition within either notch. D

A pair of friction rollers or sharpening rollers 26 are journaled in the two support disks. pintles which are journaled 1n the support disk 11, while the forward ends of the rollers are fitted with shafts 27 which are journaled in the disk 15 and closure head 14. Drive pinions 28 are fixed upon the shafts 27.

A' drive gear 29 is fixed to the shank of a crank 30. The crank shank supporting the drive gear is journaled in the support disk 15 and closure head 14. The drive gear 29 runs in mesh with the drive pinions 28, and is driven by the crank 30 to rotate the sharpening rollers 26.

The rollers 26are rotated in frictional engagement against the razor blade edges by revolving the crank .30. Thls process is continued until the diagonally opposite blade edges are sharpened. The adjustment crank 25 is then sprung out of engagement from the lock notch 17 and is swung around into the opposite notch in order to swing or rotate the frame and razor blade into a new position which brings the two unsharpened opposite blade edges in contiguous relation with the sharpening rollers to be ground when the crank 30 is rotated. The two grinding positions of the razor blade and blade frame are shown in Fig. 5.

In order to change blades the operator will securely hold the case in one hand and draws the mechanism out with the other by grasping the central part of the crank 30 and pulling the head 14 from engagement with the case. The whole assembly will easily slide out of the case and the retaining pin 12 limit the movement of the frame parts carrying the stropping mechanism. This will enable the operator to change The rear ends of the rollers have blades and the mechanism reinserted by pushing the closure head 14. back in position.

This safety razor blade stropping machine can be constructed comparatively small in size, and the cylindrical case in which it is mounted is smooth on the exterior surface thereof and has few projections to interfere in carrying the device. The crank handle 30 will preferably have a length not greater than the radius of the cylindrical casing, and both crank members will be fitted with small fingers or hand pieces on the end thereof which will render them convenient to hold during rotation of these elements.

Having thus described my invention, what, I claim as new, and desire to secure by Letters Patent is:

1. A razor blade stropping mechanism comprising; a cylindrical case provided with a pair of guide slots formed therein, a pair of disks slidably mounted in the case, retaining pins slidably confined in the guide slots and fixed to one disk to join the mechanism to the case, a blade frame pivoted between the disk members, sharpening rollers journaled between the disk members, a transmission means for rotating the sharpening rollers, swinging the blade frame into service position with the rollers.

2. A razor blade stropping machine coinprising; a cylindrical case, disk members slidably mounted therein and spaced apart, a retaining pin employed to limit sliding movement of the disk members, a razor blade holder frame mounted between the. spaced disk members, sharpening rollers journaled between the spaced. disk members, means for rotating the sharpening rollers, and means for swinging the razor blade holder frame into contact against the rollers.

3. A razor stropping machine comprising; a case, disk members slidably confined therein and spaced apart, a blade holder frame journaled between the spaced disk members, an adjustment device associated with the blade frame to hold it in fixed position, sharpening rollers journaled be- 1.

tween the disk members, a drive pinion attached to each grinding roller, a drive gear engaged with the pinions, and a crank joined with the drive gear to rotate the sharpening rollers.

4. A razor stropping machine comprising; a cylindrical case provided with guide slots, a pair of spaced disks slidably mounted in the case, a retaining pin associated with the spaced disks and confined in the guide slots to limit sliding movement of the disks relatively with the case, grinding rollers journaled be tween the spaced disks, and drive pinions mounted on the sharpening rollers, a crank, with a drive gear fixed thereon and meshing an adjustment crank for.

with the pinions, a razor blade holder frame swingably mounted between the spaced disk members, an adjustment crank associated with the blade frame, a closure head provided with a slot and lock notches fitted at the end of the case with the adjustment crank registering in the slot and lock notches, whereby movement of the adjustment crank changes the sharpening position of a blade carried on the blade frame, and whereby the rollers are rotated by the crank, and whereby the mechanism recited may be moved in and out of the case to effect blade changes.

5. A stropping machine comprising; a cylindrical case closed at one end and opened at the other, a frame slidably mounted in the case, with the razor blade sharpeners journaled in the :frame, a razor blade holder mounted in the frame, a closure head fitted in the open end of the case with a slot and lock notches at each end thereof formed in said closure head, an adjustment crank registering with the slot and lock notches and connected with the razor blade holder, and a transmission means for rotating the razor blade grinders.

STANISLAS DYKTOR. 

